1. 1. Collier P, Cavalcante JL, Phelan D, et al. Congenital absence of the left atrial appendage. Circ Cardiovasc Imaging 2012; 5: 549-50.
2. 2. Di Gioia G, Mega S, Visconti S, et al. Congenital absence of left atrial appendage in a patient with intracranial hemorrhage. Am J Case Rep 2015; 16: 514-6.
3. 3. Zhang ZJ, Dong JZ, Ma CS. Congenital absence of the left atrial appendage: a rare anatomical variation with clinical significance. Acta Cardiol 2013; 68: 325-7.
4. 4. Saleh M, Balakrishnan R, Kontak LC, et al. Congenital absence of the left atrial appendage visualized by 3D echocardiography in two adult patients. Echocardiography 2015; 32: 1206-10.
5. 5. Di Biase L, Burkhardt JD, Mohanty P, et al. Left atrial appendage isolation in patients with longstanding persistent AF undergoing catheter ablation: BELIEF trial. J Am Coll Cardiol 2016; 68: 1929-40.